Some birds have no oil gland but instead have special feathers that fray at their tips to produce a fine talclike dust for conditioning their feathers.
19 Consider an illustration: Suppose that a man’s family was being attacked by a vicious animal and that the man jumped into the fray and killed the violent beast.
(Revelation 16:14, 16; 19:11-21) How thrilling it will be for Jehovah’s faithful people to observe the fulfillment of these divine utterances and, in the midst of the fray, to hear figuratively this further utterance: “Stand still and see the salvation of Jehovah in your behalf.” —2 Chronicles 20:17.
If you are exhausted from lack of sleep or hungry because of not eating breakfast, or if your nerves are frayed because of having to rush, you will get little from the program.
By now the helper T cells have recruited millions of the scavenger macrophages to gobble up the enemy and have stimulated B cells with their antibodies to join the fray against the invaders, but there are still other forces that the helper T cells call to battle.